.home {
    position: relative;

    .home-bg {
        position: relative;
        width: 100%;
        height: 100vh;
        background-image: url('https://pic.imgdb.cn/item/64a161181ddac507cc162b40.png');
        background-size: cover;
        background-repeat: no-repeat;
        background-position: right top;
        background-attachment: fixed;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        overflow: hidden;

        .welcome,
        .start {
            background-color: white;
            width: 101%;
            color: var(--Color-Crystal);
            user-select: none;
        }

        .welcome {
            font-size: 60px;
            transform: rotate(-5deg);
            z-index: 1;
            animation: tracking-in-expand 1s cubic-bezier(0.215, 0.610, 0.355, 1.000) 0s both;
        }

        .start {
            font-size: 45px;
            transform: rotate(5deg);
            cursor: pointer;
            margin-top: 10px;
            animation: tracking-in-expand 1s cubic-bezier(0.215, 0.610, 0.355, 1.000) .5s both;

            &:hover {
                .hover-area {
                    transform: translateX(0);
                    visibility: visible;
                }
            }
        }

        @keyframes tracking-in-expand {
            0% {
                letter-spacing: -0.5em;
                opacity: 0;
            }

            40% {
                opacity: 0.6;
            }

            100% {
                opacity: 1;
            }
        }

        .hover-area {
            visibility: hidden;
            position: absolute;
            width: 100%;
            height: 50%;
            background-color: rgba(var(--Color-Crystal-RGB), 0.25);
            transition: all 2s cubic-bezier(0.215, 0.610, 0.355, 1.000);
        }

        .hover-area-top {
            top: 0;
            transform: translateX(100%);
        }

        .hover-area-bottom {
            bottom: 0;
            transform: translateX(-100%);
        }
    }

    .home-container {
        display: flex;

        .left {
            width: 0;
            flex: auto;
        }

        .right {
            margin-left: 15px;
            width: 200px;
            height: 100%;
        }
    }
}

.small-screen-style .home-bg {
    display: none;
}